The Nitecore NL189/NL1834 18650 Battery is the best 18650 so far, it has a remarkably safe record. It is perfect for high performance devices like the intense LED flashlights, devices and appliances. The NL1834 comes with a sophisticated high-performance protected circuit that prevents the cell from overcharging and discharging. The cell is capable of being recharged over 500 times, making it a cost effective 18650 battery.

The NiteCore NL189 3400mAh 18650 rechargeable li-ion battery has built in IC protection that will protect against damage due to both low and high voltage. These batteries are designed to perform under high discharge applications. You may charge these batteries over and over for years to come with a rating of more than 500 charge-discharge cycles. This is a button top cell making it easier to use with many flashlights. Rechargeables offer a great value over standard primary batteries. 3400mAh 3.7V 12.6Wh.